SN04-N 4 mm Inductive Proximity Sensor, NPN

A sensor that detects a metal part without touching it, so a machine can count, stop or trigger without a worn mechanical switch.

Detect metal without contact

• ✅ 4 mm sensing range. Switches when a metal target comes within 4 mm.
• ✅ NPN output. The output type used by most PLCs and Arduino-style controllers.
• ✅ No contact wear. Nothing touches the target, so there is no lever or roller to wear out.
• ✅ Threaded body. Mounts through a bracket like a bolt.

Technical details

• Model: SN04-N / TL-W5MC1
• Sensing distance: 4 mm
• Output: NPN
• Type: inductive proximity sensor

Key specs: Model: SN04-N / TL-W5MC1 · Sensing distance: 4 mm · Output: NPN

Mount it at the target distance and wire the NPN output.